/*
 * Copyright (c) 2016-2017, Texas Instruments Incorporated
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * *  Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * *  Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * *  Neither the name of Texas Instruments Incorporated nor the names of
 *    its contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/* -----------------------------------------------------------------------------
 *  Includes
 * -----------------------------------------------------------------------------
 */
#include <ti/display/Display.h>
#include <ti/display/DisplayExt.h>
#include <ti/grlib/grlib.h>

#include <stddef.h>
#include <stdint.h>

/* -----------------------------------------------------------------------------
 *  Externs
 * -----------------------------------------------------------------------------
 */
extern const Display_Config Display_config[];

/* -----------------------------------------------------------------------------
 *  Constants and macros
 * -----------------------------------------------------------------------------
 */

/* -----------------------------------------------------------------------------
 *  Type definitions
 * -----------------------------------------------------------------------------
 */

/* -----------------------------------------------------------------------------
 *  Local variables
 * -----------------------------------------------------------------------------
 */

/* -----------------------------------------------------------------------------
 *  Functions
 * -----------------------------------------------------------------------------
 */

/*
 *  ======== DisplayExt_doGetGraphicsContext ========
 */
tContext *DisplayExt_doGetGraphicsContext(Display_Handle handle)
{
    if (NULL == handle)
    {
        return NULL;
    }

    if (handle->fxnTablePtr->getTypeFxn() & Display_Type_GRLIB)
    {
        /* Return the tContext object of the opened GrLib-display */
        return &((DisplayGrLib_Handle)handle->object)->g_sContext;
    }

    /* If display is not GrLib capable, return NULL */
    return NULL;
}
